imidazolidine-2,4-dione hydantoin Gmelin:101266 Glycolylurea 100.02728 InChI=1S/C3H4N2O2/c6-2-1-4-3(7)5-2/h1H2,(H2,4,5,6,7) imidazolidine-2,4-dione 2,4-imidazolidinedione 2,4(3H,5H)-imidazoledione O=C1CNC(=O)N1 KEGG:C05146 CHEBI:27612 CHEBI:24625 0 CHEBI:5773 Beilstein:110598 100.07614 PDBeChem:HYN C3H4N2O2 WJRBRSLFGCUECM-UHFFFAOYSA-N chebi_ontology Hydantoin CAS:461-72-3 imidazole-2,4(3H,5H)-dione